Air conditioner



Jan.30,1934. s MlLLER 1,944,992

' AIR CONDITIONER Filed Dec. 29 1932 Fig.

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Patented Jan. 30, 1934 UNITED STATES PATENT OFFICE Application December 29, 1932 Serial No. 649,383

4 Claims.

The present invention relates to improvements in air conditioner and has for an object to provide a simple air conditioner for dwellings or other buildings, in which the indoor atmosphere 5 of a room is circulated through the improved conditioner to the end that the air may be cooled and. recirculated through the building.

Another object of the-invention is to provide an improved device for cooling air and creating a circulation of such air through the building A further object of the invention lies in providing a simple and compact unit for conditioning or cooling air which is preferably constructed to be mounted in the attic of the building and to have connection with a deep well for securing cool water as a source of conditioning medium.

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawing, wherein like symbols refer to like or corresponding parts throughout the several views,

Figure 1 is a vertical section of a building shown as equipped with the improved air conditioner,

and

Figure 2 is a diagrammatic view showing the pipe arrangement to a plurality of rooms of a building.

In accordance with the invention, the air conditioner is built the reverse of a hot air conditioning or heating system. The hot air systems are located in the basement of the building because the hot air rises'naturally and the cold air sinks by gravity to the furnace.

Because the improved air conditioner will handle cold air, it is located preferably inthe attic and operates through a system of air ducts from the attimto the rooms below.

In accordance with the improved system, a plurality of radiators 5, such as automobile radiators, are connected by pipes 6 in multiple so that the water supply from a deep well, indicated at '7, will enter all of the radiators and be discharged therefrom through a pipe 8 to a sewer 9 or other destination. In the pipe 8 is a trap 21 to prevent air passing back up the pipe 8 or to prevent the pipe 8 emptying when the system is idle. v

The radiators 5 are of the same area as the combined areas of all the air openings in the building, which building is indicated generally at 11. The indoor atmosphere of the building is subjected to circulation through the radiators 5 by means of a fan 12 driven by an electric or other motor 13. The fan 12 may be located in an elbow or inlet trunk 14. This trunk preferably has an enlarged, flaring or hell end 15 for directing the forced draught of air through the air spaces of the cells of the radiators. These radiators 5 are located in a tunnel 10 which compels the air to pass through the cooling spaces of the radiators. At the opposite end of the tunnel 10 is an outlet elbow or trunk 16 having'a bell or enlarged end 17 connecting with an in-turned conical portion of the tunnel. The fan 12 may be in the outlet trunk 16 if desired. The outlet trunk 16 receives the cold air and delivers it to the room below.

The lower ends of the elbows 14 and 16 open into the room below the attic 18 in which the device is preferably installed. The outer end of the' outlet trunk 16 may be provided with a screen or perforated plate 19.

In operation, cold water enters the internal spaces of the radiators just as water enters the radiators of an automobile. In this'case, the water may be lifted from the deep well 7 by the action of a pump 20. The air is driven through the series of radiators by "the fan 12 and gravitates to the openings 19 in the various rooms where such cold air displaces the warm air. The warm air naturally rises and finds its way to the air intake 14.

Deep well water is always below F. and the air passing through these water cooled radiators 5 quickly gives up its heat to the water, which at the same time extracts the excessmoisture in the warm air. It is a known fact that water below 60 will condense'excess moisture in the air coming in contact with it.

The discharge pipe 8 for the water will balance the lift on the supply side and thus reduce the power required for elevating water to the attic.

The improved system is intended for homes and oifices among other buildings. The unit may be located in the basement but it is preferably contained in the attic.

With regard to Figure 2, two rooms 22 and 23 are shown with an inlet manifold 24 for cold air having branches 25 and 26; and an outlet manifold 27 for the warm air having the branches 28 and 29. These various branches connect with the rooms 22 and 23 and all the other rooms of the building either through the walls or the ceilings thereof. In this case fans 30 are provided in the incoming branches 25 and 26, in which case it will probably not be necessary to have any fan on the inlet trunk 14 as shown in Figure 1. ,The small fans 30 will force air into the room from the central supply. These fans may be turned on and off so as to control the bringing of cold air to the several rooms and in this way the distribution of the air is controlled.

It will be obvious that various changes in the construction, combination and arrangement of parts could be made, which could be used without departing from the spirit of my invention, and I do not mean to limit the invention to such details, except as particularly pointed out in the claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent of .the United States is:

1. In an air conditioner, a heat exchanger having conduits for conveying cold water therethrough and located above the room to be cooled, and having air passages in circuit with the air of the room, a supply pipe from a deep well to said heat exchanger, and a discharge with a trap at lower end for the water, said discharge balancing the lift on the supply side and reducing the power required for elevating water to the heat exchanger.

2. In an air conditioner, a heat exchanger located exteriorly of the room the air of which is to be conditioned and having conduits for conveying cold Water therethrough, air inlet and outlet trunks having their adjacent ends disposed close to and at opposite sides of the heat exchanger and having their remote ends in communication with the upper portion of the room, and circulating means for drawing the warm eir from the room into said inlet trunk and forcing it through said heat exchanger back into the room.

3. In an air conditioner, a heat exchanger having conduits for conveying cold water therethrough and having air passages, elbow trunks at opposite ends of the heat exchanger provided with flaring bell ends opening into said heat exchanger and having their remote ends in communication with the upper portion of the room to be cooled, said heat exchanger only having communication with the room through said trunks, and a fan disposed in one of said elbows for creating a forced draught of air through the elbows and air passages of the heat exchanger.

4. In an air conditioner, a heat exchanger located outside of the rooms to be cooled and having conduits for conveying cold Water therethrough, trunks at oppositeends of said heat exchanger provided with ends disposed close to said heat exchanger, each of said trunks having a plurality of branches in communication respectively with the upper portions of the rooms, and a fan disposed in each of the branches of one of said trunks.

SAMUEL C. MILLER. 

